Seoul is the capital and largest metropolis of the Republic of Korea and is the world’s 3rd largest city with a population of 25,6 million, behind Tokyo (featured header image) and Jakarta.

Urbanisation is a global trend – with distinct opportunities or complex challenges, depending on where in the world it is taking place.

Every day across the world, economic, climatic, and political factors force migration from traditional rural dwellings to makeshift urban neighborhoods.

By 2050, two-thirds of the world’s population will live in cities. Urbanisation is happening faster than at any time in human history.

In this video, the Economist shows how city leaders, businesses, and even citizens, are taking new approaches to tackling these old problems. They’re transforming their cities with technology.